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23 February, 02:23

If 12 people are to be divided into 3 committees of respective sizes 3, 4, and 5, how many divisions are possible?

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  1. 23 February, 05:39
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    Answer: 1,320

    Step-by-step explanation:

    We can solve this using permutation

    n p r = n! / (n-r) !

    12 P 3 = 12! / (12-3) !

    = 12 * 11 * 10 * 9! / 9!

    = 12 * 11 * 10

    = 1320
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